Bremen, October 2nd, 2018. OHB System AG, a subsidiary of listed technology group OHB SE, has awarded the principal subcontract for the national Heinrich Hertz satellite mission today at the International Astronautical Congress (IAC 2018) in Bremen in the presence of representatives of the Space Administration of the German Aerospace Center (DLR): The Backnang-based company Tesat has received a contract from OHB for the assembly and verification of the scientific/technical payload and for the construction of the repeater for the military payload on board the communications satellite.